A high school girl who literally crashes into an unnamed salaryman on train station stairs, breaking his arm in the process. Wracked with guilt, she visits him repeatedly in the hospital—and the two end up getting to know each other through those visits, eventually starting a relationship.
By day she's a solid student juggling class rep duties and a part-time gig at Koubeya, a chain of bakery-restaurants where she works in their signature bowtie and tartan apron. She goes by "Ai-chan," a nickname she prefers that references her cup size. She has a younger sister in middle school who's similarly well-endowed.
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